Horseshoe-calk.



G. v. OWEN. HOBBESHOE CALI.

AP PLIOATIOI FILED KAY 6, 1910.

989,866. Patented Apr, ,18, 1911.

a m/2e K act/e10 'THE NORIIS PETERS ca. wnsmncmn, 1:. c.

GEORGE V. OWEN, OF BIRCHARDVILLE, PENNSYLVANIA.

I-IORSESHOE-CALK.

Specification of Letters Patent.

Patented Apr. 18, 1.91.1...

Application filed May 6, 1910. Serial No. 559,759.

To all whom it may concern:

lie it known thatv I, (inonou V. OWEN, citizen of the United States,residing at: liirehardville, in the county of Susquehanna and State ofPennsylvania, have invented certain new and useful ln'iproveinents inl[orseshoe-(lalks, of which the following is a specification.

This invention relates to horseshoes and more particularly to avreversible call; for attachment to the toe and heel of the shoe.

The object of the invention is to provide a comparatively simple andinexpensive calk of this character, capable of being readily attached toa horseshoe and which may be reversed or used as either a. right or lefthand calk.

A. further object. is to provide a novel form of clamp for retaining theheel calks in position on a horeshoe.

A still further object of the invention is generally to improve thisclass of devices so as to increase their utility, durability andefficiency, as well as to reduce the cost of manufacture.

Further objects and advantages will appear in the following description,it being understood that various changes in form, proportions and minordetails of construction may be resorted to within the scope of theappended claims.

For a full understanding of the invention and the merits thereof,reference is to be had to the following description and accompanyingdrawings, in which:

Figure 1 is a perspective view of a horseshoe provided with reversibletoe and heel ealks constructed in accordance with my in vention; Fig. 2is a plan view of the toe portion of the shoe; Fig. 3 is a verticalsectional View taken on the line 3-3 of Fig. 2; Fig. 4 is a similar Viewtaken on the line et-4 of Fig. 2; Fig. 5 is a transverse sectional viewtaken on the line 5-5 of Fig. 2; Fig. 6 is a longitudinal sectional viewof one of the heel calks; Fig. 7 is a plan view illustrating a modifiedform of the invention.

Corresponding and like parts are referred to in the followingdescription and indicated in all the views of the drawings by the samereference characters.

The improved calk forming the subject. matter of the present inventionis shown applied to a horseshoe of the ordinary construction, in which 5designates the body portion, t3 the toe, and 7 the heels provided withdepending stop lips or shoulders 8.

The heel ealks t) are preferably formed with angularly disposed wings 10having their free ends inclined or beveled to produce cutting edges 11adapted to bite into the surface of the ground and thus prevent slippingwhen the draft. animal is walking on snow or ice. One wing 10 of eachheel calk bears against the adjacent face of the adjacent stop lip '8,while the other wing thereof bears flat against. the bottom of the shoe,bestshown in Fig. {3 of the drawmgs.

The heel calks are retained in position on the shoe, by means ofclamping plates 12 having oppositely disposed upwardly projectingflanges 13 which embrace the adjacent longitudinal edges of the shoe andserve to prevent lateral movement of said plates. One end of eachclamping plate 12 is provided with atransverse flange 14 adapted to bearagainst the face of the adjacent ealk, while the intermediate portionthereof is offset at 15 so as to present an inclined face 16 forengagement with the adjacent inclined face of said calk.

The metal at the offset portion 15, is extended longitudinally toproduce a shank 17 having an upstanding lug 18 adapted to enter acorrespondin ly shaped recess 19 formed in the base of the shoe, thusholding the flange lat in engagement with the adjacent wing of the ealk.The shank 17 is provided with a longitudinally disposed slot 20 adaptedto receive a bolt or similar fastening device 21, the latter beingthreaded in an opening in the base of the shoe, as best shown in Fig. 6of the drawings. The slots 20 permit the clamping plates 12 to beadjusted longitudinally of the shoe when it is desired to remove orreverse the wings of the heel calks.

The toe call; 22 is similar in construction to the heel calks and isadapted to bear against a depending stop lip 23 formed on the toeportion 6. The toe calk 22 is retained in position on the shoe by a fiatmetallic plate 24, one end of which is secured to the bottom of the shoeby a pivot pin 25, while the other end thereof is fastened to the shoeby a screw 26. Thus it will be seen that by removing the screw 26 andswinging the plate laterally on its pivotal axis 25, the toe calk 22 maybe detached and reversed so as to present a new cutting edge to theground. lt will also be seen that by removiiig the clan'iping plates 12,the rear callcs may be removed and reversed, or the calk on the righthand side of the shoe may be placed on the left hand side of said shoe.

The upper face of the toe plate 21- at the pivot 25, is provided with aboss 27 which enters a correspondingly shaped recess 28 formed in thebottom of the shoe, thus forming a bearing and at the same time relievethe pivotv pin 25 of undue strain when moving the plate to operative andinoperative positions. The lower face of the shoe is also preferablyformed with an enlargement or stop shoulder 29 to relieve the strain onthe screw 26 should the animal stub its toe. The plate 24 is disengagedfrom the shoulder 29 and swung laterally on the pivot 25, when it isdesired to remove the toe calk, the pivot pin 25 having a looseconnection with the plate so as to permit turning movement of said platewithout danger of bending the pivot.

In Fig. 7 of the drawings, there is illus trated a modified form of theinvention, especially designed for use as a side calk. In this form ofthe device, the inner longitudinal edge of the shoe at the heel portionthereof is provided with an enlargement 30 having a curved inner face31, the adjacent end of the shank 17 being correspondingly curved forengagement therewith, the construction and operation of the device beingotherwise similar to the heel calk shown in Fig. 1 of the drawings.

Having-thus described the invention, what is'claimed as new is:

1. A horseshoe having a depending stop lip at the toe portion thereof, atoe calk having angularly disposed wings, the ends of which are inclinedto produce cutting edges, a retaining plate pivotally mounted on one endof the shoe and adapted to bear agaii'istone of the wings of the toecalk, and a fastening device extending through the other end of theretaining plate and engaging the lower face of the shoe.

2. A horseshoe having its toe portion provided with a depending stoplip, and its lower surface formed with a circular socket, a toe ealkhaving angularly disposed wings, one of which bears against said steplip and the other the adjacent lower face of the shoe, a retaining platehaving a boss seated in the socket in the lower face of the shoe, apivotpin. extending through the retaining plate, boss and socket, a screw forclamping the retaining plate in engagement with the adjacent wing of thetoe ealk, and a stop shoulder formed on the lower face of the shoe andbearing against the adjacent edge of the retaining plate for taking thestrain off of the screw.

3. it horseshoe having a reversible toe calk detachably secured to thetoe portion thereof and provided with angularly disposed wings havingterminal cutting edges, and a retaining plate secured to the lower faceof the shoe and bearing against one of the angular wings of said toecalk.

4:. A horseshoe having a reversible toe calk detaehably secured to thetoe portion there of and provided with angularly disposed wings, aretaining plate secured to the lower face of the shoe and bearingagainst one of the angular wings, and a stop shoulder de pending fromthe lower face of the shoe and bearing against one longitudinal edge ofthe retaining plate.

In testimony whereof, I afliX my signature in presence of two witnesses.

L. T. BIRCI-IARD, WILLIAM A. OWEN.

Copies of this patent may be obtained for five cents each, by addressingthe Commissioner of Patents. Washington, D. C.

